Name: echocardiographic approaches and protocols for comprehensive phenotypic characterization of valvular heart disease in mice
Uploaded: 2017-02-14T12:30:00
Description: Watch this Scientific Journal Video about Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice at JoVE.com

This work was supported by NIH grants HL111121 (JDM) and TR000954 (JDM).

1. Malzemeler ve Ekipmanları (Tablo 1 ve Şekil 1) hazırlayın <ol><li> ultrason Makineyi açın. hayvan kimliği, tarihi ve saati (seri görüntüleme deneyleri için) ve diğer ilgili bilgileri girin. </li><li> Bir yüksek frekanslı ultrason transdüktörü, ~ 20 g ya da 20 g ~ daha büyük fareler için 30 MHz daha az görüntüleme fareler için 40 MHz kullanın. </li><li> elektrokardiyogram platformu bağlayın (EKG) bazı yöntemleri için görüntüleme EKG yolluk izlemek. Not: Kritik olarak, bu aynı...

<ol>
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Anestezi indüksiyonu Uygun indüksiyon ve anestezi bakım farelerde kalp kapak değişikliklerin doğru değerlendirilmesi ve kalp fonksiyonu için kritik öneme sahiptir. izofluran ve derin anestezi sonrası bu anestezik nispeten uzun wash-out zaman ortaya anestezi hızlı indüksiyon göz önüne alındığında, indüksiyon tek başına anestezi odasına kullanmayın. yukarıda detaylı olarak belirtildiği gibi yerine, hayvanlar anestezi nispeten düşük konsantrasyonlard...

Yaşlanma Kardiyovasküler kalsifikasyon 1 ilerici artış ile ilişkilidir. Hemodinamik olarak önemli aort darlığı 65 2 yaşın üzerindeki nüfusun% 3 etkiler ve hatta ılımlı aort darlığı (3-4 m / s pik hız) olan hastaların% 40&#39;tan az bir 5 yıllık olaysız sağkalım 3.. Halen, orada aort kapak kalsifikasyonu ilerlemesini yavaşlatmak için etkili tedaviler ve cerrahi aort kapak replasmanı ileri aort darlığı 4 için kullanılabilir tedavidir. Başlatılması ve aort kapak kalsifikasyonu ilerlemesine katkıda mekanizmaların daha derin bir anlayış kazanıyor amaçlayan çalışmalar aort kapak darlığı 5, 6 yönetmek için farmakolojik ve cerrahi olmayan yöntemlerle doğru hareket önemli bir ilk adımdır. Genetikly-değiştirilmiş fareler çeşitli hastalıklara katkıda bulunmak ve şimdi aort darlığı 6, 7, 8 biyolojisi anlamaya yönelik mekanik çalışmalar ön plana geliyor mekanizmaların anlayışımızı geliştirilmesinde önemli bir rol oynamıştır. Gibi diğer kardiyovasküler hastalıklar aksine ateroskleroz ve kalp yetmezliği-damar ve ventrikül fonksiyonunu değerlendirmek için standart protokoller köklü-orada farelerde kalp kapak fonksiyonunun in vivo feno ilişkilendirilmiş benzersiz zorluklar çoğunlukla vardır. Son yorumları sayıda görüntüleme ve kemirgenler 9, 10, 11 valf fonksiyonunu değerlendirmek için kullanılan invaziv modalitelere avantajları ve dezavantajları konusunda kapsamlı tartışmalar sağlanan olsa da, bugüne kadar, biz bir COMPRE sağlayan bir yayının farkında değildirmlam, adım-adım farelerde fenotiplendirme kalp kapak fonksiyonu için protokol. Bu yazının amacı, farelerde kalp kapak işlevi fenotipe yöntem ve protokolleri tanımlamaktır. Tüm yöntemler ve prosedürler Mayo Kliniği Kurumsal Hayvan Bakım ve Kullanım Kurulu tarafından onaylanmıştır. Bu protokolün temel bileşenleri anestezi derinliği, kalp fonksiyonunun değerlendirilmesi ve kalp kapak fonksiyonlarının değerlendirilmesini içerir. Biz bu raporun sadece kalp kapak hastalığı alanında araştırma peşinde ilgilenen araştırmacılar rehberlik hizmet etmeyecek, aynı zamanda bu hızla büyüyen alandaki veri tekrarlanabilirlik ve geçerliliğini sağlamak için protokol standardizasyon ile ilgili ulusal ve uluslararası diyalog başlatmak umuyoruz. Önemli olan, yüksek çözünürlüklü ultrason sistemlerini kullanarak başarılı görüntüleme (yaygın sonografi kullanılan ve terminoloji) sonografi ilkelerinin bir çalışma bilgi, temel Princip bir anlayış gerektirirkalp fizyolojisi ve sonografi ile önemli bir deneyime les kemirgenlerde kardiyak fonksiyonların doğru ve zaman verimli değerlendirilmesi için izin vermek.

<table border="0" cellpadding="0" cellspacing="0" width="1906">
	<tbody>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">High resolution ultrasound machine</td>
			<td style="width:453px;">VisualSonics, Fujifilm</td>
			<td style="width:293px;">Vevo 2100&#160;</td>
			<td style="width:467px;"></td>
		</tr>
		<tr height="68">
			<td height="68" style="height:68px;width:693px;">Isoflurane diffuser (capable of delivering 1 % to 1.5 % isoflurane mixed with 1 L/min 100% O2</td>
			<td>VisualSonics, Fujifilm</td>
			<td>N/A</td>
			<td></td>
		</tr>
		<tr height="68">
			<td height="68" style="height:68px;width:693px;">Transducers for small mice (550D) or larger mice (400)</td>
			<td>MicroScan, VisualSonics, Fujifilm</td>
			<td>MS 550D, MS 400</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Animal platform</td>
			<td>VisualSonics, Fujifilm</td>
			<td>11503</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Advanced physiological monitoring unit</td>
			<td>VisualSonics, Fujifilm</td>
			<td>N/A</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Isoflurane</td>
			<td>Terrell</td>
			<td>NDC 66794-019-10</td>
			<td></td>
		</tr>
		<tr height="74">
			<td height="74" style="height:74px;width:693px;">Nose cone and tubing connected to isoflurane diffuser and 100% O2</td>
			<td>Custom Engineered in-house</td>
			<td>--</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Hair razor</td>
			<td>Andis Super AGR+ vet pack clipper</td>
			<td>AD65340</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Ultrasound gel</td>
			<td>Parker Laboratories</td>
			<td>REF 01-08</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Electrode gel&#160;</td>
			<td>Parker Laboratories</td>
			<td>REF 15-25</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Adhesive tapes</td>
			<td>Fisher Laboratories</td>
			<td>1590120B</td>
			<td></td>
		</tr>
		<tr height="34">
			<td height="34" style="height:34px;width:693px;">Paper towels</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
</table>

echocardiographic approaches and protocols for comprehensive phenotypic characterization of valvular heart disease in mice

The aim of this manuscript and accompanying video is to provide an overview of the methods and approaches used for imaging heart valve function in rodents, with detailed descriptions of the appropriate methods for anesthesia, the echocardiographic windows used, the imaging planes and probe orientations for image acquisition, the methods for data analysis, and the limitations of emerging technologies for the evaluation of cardiac and valvular function. Importantly, we also highlight several future areas of research in cardiac and heart valve imaging that may be leveraged to gain insights into the pathogenesis of valve disease in preclinical animal models. We propose that using a systematic approach to evaluating cardiac and heart valve function in mice can result in more robust and reproducible data, as well as facilitate the discovery of previously underappreciated phenotypes in genetically-altered and/or physiologically-stressed mice.

rutin hayvan kalp ultrason görüntülemede elde edilen görüntü örnekleri Bu yazıda yer almaktadır. Hayvanın göğüs dönüştürücü yerleştirme bir illüstrasyon okuyucu dönüştürücü açıklandığı gibi görüntüler elde etmek için konumlandırılmış nerede net bir anlayış vermek için sağlanmıştır. ultrason laboratuvar set-up bir fotoğraf da uygun ekipman, özellikle kullanılacak ultrason dönüştürücü ve anestezi yönteminin önemini vurgulamak dahild...

Watch this Scientific Journal Video about Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice at JoVE.com

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

This protocol provides a detailed description of the echocardiographic approach for comprehensive phenotyping of heart and heart valve function in mice.

Farelerde Kalp Kapak Hastalıkları Kapsamlı Fenotipik Karakterizasyonu için ekokardiyografik Yaklaşımlar ve Protokoller

The aim of this manuscript and accompanying video is to provide an overview of the methods and approaches used for imaging heart valve function in ...

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Küçük Hayvan Bak-soyunma Ters Kurtarma (SALLI) Sıçanlarda MRI kullanarak Kalp Fonksiyonu ve Miyokard Morfoloji Değerlendirilmesi

Small animal magnetic resonance  imaging is an important tool to study cardiac function and changes in myocardial  tissue. The high heart rates of small ...

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Assessment and Characterization of Hyaloid Vessels in Mice

Farelerde hyaloid damarlarının değerlendirilmesi ve karakterize edilmesi

In the eye, the embryonic hyaloid vessels nourish the developing lens and retina and regress when the retinal vessels develop. Persistent or failed ...

Transthoracic Echocardiographic Examination in the Rabbit Model

Tavşan modelinde transtortik ekokardiyografi sınavı

Large animal models such as the rabbit are valuable for translational preclinical research. Rabbits have a similar cardiac electrophysiology compared to ...